Airtac SAID40 Double Rod Cylinder SAID40AX90S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX90S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 90mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke90 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX90S
The AirTAC SAID40X90-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 90 mm stroke. Because the piston rod extends from both end covers, the effective annulus area is identical on extension and retraction. This provides an equal force output of 528 N in both directions at 0.5 MPa, ensuring perfectly symmetric motion for demanding transfer tasks.
Equipped with a magnetic piston (-S), this variant supports electronic DMSE and reed CMSE position sensing. It utilizes a SUS420J2 stainless steel rod for enhanced corrosion resistance and accepts PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount a workpiece on the front rod and a cam or limit flag on the rear protrusion.
Airtac SAID40 Double Rod Cylinder SAID40AX90S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX90S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40AX90S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID40 Double Rod Cylinder SAID40AX90S Is Used
Symmetric Force Transfer
Drives a workpiece forward and backward with identical 528 N force, preventing speed fluctuations in precision indexing slides.
Dual-Side Actuation
Mounts the primary tool on the front rod extension while utilizing the rear rod end to trigger a DMSE solid-state sensor or drive a secondary mechanism.
Anti-Rotation Guidance
The twin-rod architecture keeps the load guided against rotation better than a single rod, stabilizing vertical lifts and heavy lateral transfers.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX90S the Right Cylinder?
Select this 40 mm bore when an application demands equal push and pull forces, such as synchronizing a dual-station pickup or counterbalancing a load. If your mechanism requires less force, stepping down to the 32 mm bore yields 345 N both ways; stepping up to the 50 mm bore provides 825 N. Unlike a single-rod SAI, this double-rod configuration prevents rod rotation and enables rear-rod actuation. It uses the standard ISO 15552 mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) but omits FB, CA, CB, and CR brackets. Note that variable air cushions only decelerate the piston near stroke end; they do not hold the load. If air pressure drops, the cylinder will drift, requiring an external pilot-operated check valve or a BSAID clamp-lock for secure positioning.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID40 Double Rod Cylinder SAID40AX90S FAQ
Because it is a double-rod cylinder, the effective piston area is the same on both sides. It outputs 528 N in both extend and retract directions at 0.5 MPa, and 739 N both ways at 0.7 MPa.
Yes. The SAID40X90-S is dimensionally interchangeable per ISO 15552 and serves as a drop-in replacement for other standard profile double-rod cylinders, utilizing PT G1/4 ports and standard mounting brackets.
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